HD 213240 b

HD 213240 b
Exoplanet List of exoplanets
Parent star
Star HD 213240
Constellation Grus
Right ascension (α) 22h 31m 00.3672s
Declination (δ) −49° 25 59.773
Apparent magnitude (mV) 6.80
Distance132.91 ly
(40.75 pc)
Spectral type G0/G1V
Orbital elements
Semi-major axis(a) 1.92 AU
(287 Gm)
Periastron (q) 1.11 AU
(166 Gm)
Apastron (Q) 2.73 AU
(408 Gm)
Eccentricity (e) 0.421 ± 0.015
Orbital period(P) 882.7 ± 7.6 d
(2.417 y)
Orbital speed (υ) 23.7 km/s
Argument of
periastron
(ω) 201.0 ± 3.2°
Time of periastron (T0) 2451499 ± 12 JD
Semi-amplitude (K) 96.6 ± 2.0 m/s
Physical characteristics
Minimum mass(m sin i)4.72 MJ
Discovery information
Discovery date April 4, 2001
Discoverer(s) Santos et al.[1]
Discovery method Doppler spectroscopy
Discovery site Geneva Extrasolar Planet Search
Discovery status Published[1]

HD 213240 b is an extrasolar planet located approximately 133 light-years (41 parsecs) away in the constellation of Grus, orbiting the star HD 213240.[1]

The origin of this known planet came from the country of Switzerland and the astronomer Santos. The date was on April 4, 2001 and the method was Doppler spectroscopy.

See also

References

  1. 1 2 3 Santos, N. C.; et al. (2001). "The CORALIE survey for southern extra-solar planets VI. New long period giant planets around HD 28185 and HD 213240". Astronomy and Astrophysics. 379 (3): 999–1004. arXiv:astro-ph/0106255. Bibcode:2001A&A...379..999S. doi:10.1051/0004-6361:20011366.
  • "Notes for planet HD 213240 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-29.
  • "HD 213240". Exoplanets. Retrieved 2008-08-29.

Coordinates: 22h 31m 00.3672s, −49° 25′ 59.773″


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